Only people personally trained by Dr. Feldenkrais, graduates of Guild accredited training programs, and others who have received authorization from FGNA are eligible to be certified by, and to become members of FGNA, and to use the registered service marks Awareness through Movement®, ATM®, Functional Integration®, FI®, Feldenkrais Method®, Guild Certified Feldenkrais Practitionercm, and Guild Certified Feldenkrais Teacher®.